Paperboard container or the like



Jan. 2,1945. J 35 HAVEN PAPERBOARD CONTAINER OR THE LIKE Filed Jan. 23, 1943 2 Sheets-Sheet l m x u 2 m .m i z.

Ja fizz/sul a) ZZZ ward JDeHu/em 2, 1945- E. J. DE HAVEN 2,366,602

PAPERBOARb CONTAINER OR THE LIKE Filed Jan. 23, 1945 2 Sheets-Sheet 2 QQWW I Patented Jan. 2, 1945 UNITED STATES-"PATENTOFFICE j 1 2,366,602 I PAPERBOARD CONTAINER on 'rnr: LIKE Edward De Haven, Green Bay, Wis, assignmto St. Joe-Mullen Container Corporation, St.

Joseph; Mich... a. corporation of Michigan I Application January 23,1942, Serial No. 473,357

. 1 Claiml -(o1. 229- s2 This invention relates topaperrboard container or the like and aims to provide an improved containerof this type more particularly for. the re.- ception of. liquids such as paints which are to be applied with a roller or other utensil which may require an extended or relatively shallow area of the liquid, forapplication to the utensil.

This andother objects and advantages will be a parent from the following description, takentogether with the accompanying drawings, in which- Figure 1 is a perspective completed view of a.

container embodying the present invention;

Figure 2 is a plan view of a sheet of paper-board or the like from which the container of Fig. 1 is folded;

, Figures Band l are further development views intermediate the structures of Fig. 2 and Fig. l and showing one corner of the container;

Figure 5 is a similar View showing a final step in the construction of said corner; and

Figure 6 is a-reduced bottom view of the container shown in the other figures.

for the containerwhen completed as presently more particularly pointed out.

, Somewhat similarly the; score marks I4 each.

define the bottom portion I2 as distinguished from another pair-of sides I8 Each side I8 has a longitudinal center score mark I9 for a purpose similar-to, the score marks I6 of the sides I5 previously explained. Differing from the sides I5,

I marks however, the sides I8 at each end of each of these latter 20, for the laminations Ilia, and a, for the laminations I8b, which define a somewhat hexagonal shape for each side I8 corresponding to that of aside I5 whereby when a side Ill and a side I5 are folded up into mating, conjunctive position the tray character of the container is maintained.

Beyond the score marks 20 and 20, a side I8 7 at each end is continued to form a pair of tongues 2I and 22. The tongue 2I in each case is desirably somewhat in the form of an equilateral triangle with its base one of the score marks 20.

Referringin detail to the drawings, and, turn- I 1 ing first to Fig. 2, an integral sheet of fiber ma terial I0 is provided which is initially flat and may have one face, that is, the face which is up- The tongue 22, however, in each case, is desirably in the form of an isosceles triangle in which a score mark 20a is the shorter base and the apex 23 is extended beyond theapex of the triangular permost in Fig.2, calenderedior otherwise finished. to effect a smooth glossy somewhat liquid re pellent surface I I thereon, including any coloring] or other decoration desired.

While still in the flat, the sheet In is advantageously punched or cut to the form shown in Fig. 2

and which comprises a bottom portion I2 bounded by parallel score marks I3 and similar parallel score marks I4 transverse to the score marks I3. The score marks I3 define the bottom I2 as distinguishedfrom a pair ofsidesfl I5 which are to be later bent up from thebottom I2 and each folded upon itself along the score mark I6 which is parallel with the score mark l3, thus forming tongue 2| and materially diverging therefrom in the flat] H Turning. now to Fig. 3, this shows a development view of one corner of .thecontainer, in this instance either the upper or the lower corner shown in Fig. 1- looking thereat from the outside of the container, this being initially either the upper right-hand corneror the lower left-hand the side of a plurality of laminations or plies of the sheet. It will be noted that the score mark I6 is substantially midway between the score mark I3 and the extreme outer edge of the side I5 while in the flat,-thus providing that the laminations of the side when folded are of substantially equal area, and also,'since the laminations are folded with the calendered face I I of the fiber sheet outermost, the uncalendered face of the sheet is substantially completely covered and concealed at the said side.

The two sides I5, which are alike, are somewhat hexagonal as shown, thus forming the ends of these sides with the slating edges I'I, the. longest dimension of the side being coincident. with the score mark I6, so that when the sides are folded up as described, they flare slightly upwardly and outwardly to provide a somewhat tray appearance its uncalendered face.

22, which. is a continuation of the side lamina-.

corner of theblank, as seen in Fig. 2. In this development step, the adjoining sides I5 and I8 have been folded up from the bottom I2. side I5 is seen to comprise thellaminations I5a and I5bseparated by the score mark- IB. Similarly, the side I8 is seen to comprise the laminations I81; and Hit) separated by the score mark I9.

These laminations, however, have not yet been folded upon themselves respectively. Before do ing so, it will'be seen that the tongue 2|, which f is acontinuation of the lamination I8a of the side I8, is folded to lap the side lamination I50. upon At this time the tongue tion I8b, is extending in the opposite direction or laterally outwardlyof 'the container.

As. a next step, and as shown in Fig. 4, the side lamination 18b is folded by means of the score 1 mark I9 to overlap the uncalendered face of the 3 lamination I8a, thus bringing the calendered face of the lamination 18b to the exterior of the container. At the same time the tongue 22 is rotated degrees with the side lamination I8b, to the position shown in Fig. 4, and overlying the unsides have, instead of the edges II, score The I calendered face of the tongue 2I. At the same upon the uncalendered face of the side lamination l5a, thus bringing the calendered face of." the lamination liib outermost of the container. 7

At the same time, the tongues 2i and 22 are enclosed between the laminations I511 and b.

Thereupon the parts may be secured in this position, as, in this instance, by a wire staple 24.

So constructed and arranged, the container,

here in the form of a tray and shown completed in Fig. 1, displays only the calendered surface H of the paper-board or other fiber material from which it is formed as described, the only uncalendered surface which is exterior of the container being upon the under face of the bottom M 2 and thereby concealed when the container is in use upon a table or other support. Furthermore, the provision 'of the double or overlapping tongues 21 and 22 desirably at each corner of the container, which have a base and 20a respec tively in each instance substantially equivalent to the height of the container side, effect a reinforcement of the container at its lower corner 25, and particularly at the lower interior corner 25a thereof, so that the container is particularly adapted to hold or carryliquids without leaking. Also, the folded-over side laminations or plies of substantially equal height materially strengthen the container and provide in effect a substitute for a structure which ordinarily might be made of metal or other more inherently rigid material.

Figure 6 shows a reduced bottom view of the container and it will be noted from this figure that the outer laminations I51) and lab of the sides respectively tend to arch or spring outwardly along their lower edgeswhen the container is completed and between the corners of the device. It has been found that by making the laminations of the sides of substantially equal height as already mentioned, that this arching or bowing effect is produced and contributes ma-. terially to the strength and rigidity of the container, the laminations of the sides when sospaced apart by this arching or bowing effect enhancing the beam effect of the sides. To accomplish thisdesirable result, the laminations of the sides are not secured together adjacent. their lower ends between the corners of the container. Thus any sagging of the container when'filled is inhibited.

The score marks 2% are advantageously offset from the score marks 23 to provide a crease or line of fold for the laminations l8b spaced from the line of fold for the laminations 58a longitudinally of the side ii to facilitate folding.

As an aid to the handling of such liquids there may be imprinted upon the interior of one of the sides, in this instance one of the sides I5, as at 25, a heavy line or other indicia of contrasting color with the color of the calendered surface H and parallel with the bottom l2 at a suitable height upwardly of the side IE to provide a liquid level gauge line indicating a safe height for liquid in the container without danger of spilling. To enhance the effectiveness of the line 2% anotherline 2'! is here shown imprinted upon each of the sides i8 which in the completed container are inwardly of the latter. The lines 21 are advantilting the container to bring the level of the liquid substantially coincident with the combined gauge line 212627, the container thus acting as a reservoir. for many useful purposes such as the application of a liquid to a roller utensil, for

example, such roller being initially inserted into the container at its deep end and then rolled upwardly toward the shallower end of the con tainer whereupon only sufiicient of the liquid will remain upon the roller to provide a suitable coating thereon without dripping when lifted out. The angle of the lines 21 is advantageously, such that the upper end of the container, when so tilted to cause the liquid to register with the line 27 2621, is free of the liquid. To contribute to this result, the tray or container is here shown slightly elongatedor oblong rather than square. Since the wire clips 24 are on the shorter sides, E5, the longer sides It acquire an enhancedbeam efiect' to reinforce the greater length of the CD111. tainer by the bowing or arching function of the laminations it?) of the sides 18.

As is wellknown in the art, the score marks l3, l4, l6, |9,.2G and 20a may be of the usualdouble character facilitating ready creasing of the sheet material in the manner described.

Trays so formedare readily stacked or nested for convenient storage and handling.

Such changes or modifications may be madeas fallwithin the scope of the appended claim With'!',

out departing from the invention.

'What is claimed is: y A paper-board container or the like comprising a sheet having one surface liquid repellent initially flat and folded up to provide a bottom and four sides, each of said sides being formed of an inner and an outer lamination of the sheet folded upon each other with the outer laminae tion outermost and said liquid repellent surface innermost, the laminations for a given side being of substantially equal area for that side whereby one of the faces of said sheet where so laminated is substantially completely covered, each side being of hexagonal shape in. the flat and the longest dimension of each side being on its longi-,

tudinal center fold line whereby to provide'a' tray-like flare for the container, and two tongues at each end of two opposite sides, one tongue? on each lamination of said side, the outer ofsaid tongues on said outer laminations being such as to make said outer laminations including said outer tongues of a length substantially equal to the longer overall dimension of the said sheet when in the fiat, said tongues being-adapted to be folded together. with the laminations of an adjoining side and secured together and to the; larninations thereat, the outer tongues being bent; on a line of fold spaced beyond the line of fold; of the inner tongues longitudinally of that side-v I the laminations of the sides being otherwise u secured adjacent their lower margins whereby to spring apart therebetween to enhance-the beam effect of the side and strengthen the container and whereby said container is substanl f man liquid tight.

EDWARD J. DE HAVEN. 

